# Global–local image enhancement with contrast improvement based on weighted least squares

> Research article (Optik, 2021) · cited 16× · AI/ML

**Wikidata**: [openalex:W3169884997](https://www.wikidata.org/wiki/openalex:W3169884997)  
**Source**: https://4ort.xyz/entity/globallocal-image-enhancement-with-contrast-improvement-based-on-weighted-least-squares